Improvement in operating swells in musical instruments



UNITED STATES PATENT OFFICE..

GEORGE VOODS, O F BOSTON, MASSACHUSETTS, ASSTGNOR TO MASON & HAMLIN, OF SAME PLACE.

IMPROVEMENT IN OPERATING SWELLS IN MUSICAL INSTRUMENTS.

Specification forming part of Letters Patent No. 3697,56, dated Octobeyll, 18132.

To @ZZ whom it may concern.-

Be it known that I, GEORGE WOODS, of Boston, in the county of Suffolk and State of Massachusetts, have invented a new and linproved Mode of Opening the Swells of Melodeons, Harrnonieons, &c.; and Idohereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings,and the letters of reterence marked thereon.

The nature of iny invention consists in attaching to the bellows or receiver an arnl, which is so arranged as to act at the will ofthe performer upon the roller or lever, which in turn acts upon the swell or swells of the instrument, and this action is. entirely effected by the exhaustion ofthe air from the bellows or receiver, which is governed by the performer through the pedals of the instrument,

thereby obviating the necessity of removing the foot from the pedal toa side or independent pedal, which has hitherto been the case.

To enable others skilled in the art to make and use my invention7 I will proceed to describe its construction and operation.

I attach to any part of thebellows or receiv-' er D, convenient for the purpose, an arin, A, Figs'. l, 2, 3, and 4. The arm E, Figs. 2 and 3, attached to the roller or lever B, connnunica tes with the swell O, being-placed under the end of thcswell,whichin turn is pressed downward by the spring G, Figs. l, 2, 3, and i. It will now be perceived that when the bellows or receiver D is closed, as in Fig. l, this arin A is thrown up, elevating au arin of the roller or lever B, which opens, by being so elevated, the swell C, as shown in Fig. 1; but when the bellows or receiver D gradually retnrns,by the force ol' the spring F, Figs. l, 3, and 4, to its original position, the swell becomes closed, as shown in Figs. 2, 3, and 4.

That I claiin as lny invention, and desire to secure by Letters Patent, is*

-The operating ofthe swell or swells ol" 1nelodeons, harinonieons, or other similar' instruments, by the contraction and expansion ofthe bellows or any elastic receiver connected with thcinstrnnient.

GEORGE WOODS.

Witnesses:

LOWELL M. PALME-n, Crus. B. BovLE. 

